Process of manufacturing textile materials



Jan- 18, 1949- R. CLEELAND ErAl.

PROCESS 0F MANUFACTURING TEXTILE MATERIALS Filed Feb. l2, 1946 2 Sheets-Sheet l To SPINNING MACHINE INVENTOR ROYCLEELAND LQUISJT KELLEY BY WALTERSDAvls ATTORNEY.

Jan- 18, 1949- R. CLEELAND Erm. 2,459,620

PROC-ESS OF MANUFACTURNG TEXTILE MATERIALS Filed Feb. l2, 1946 2 Sheets-Sheet 2 INVENTR ROY CLEELAND Lows IKELLEY BY WALTERSDAWS h; ATTORNEY 22 is the associated doier.,

Patented Jan. 1s, 1949 a i 2,459,6zo

PROCESS or MANUFACTURING 'TEXTILE Y MATERIALS s Roy Cleeland, Meadowbrook, Louis J. Kelley,

Application February 12, 1946, Serial No.

Upper Darby, and Walter S. Davis, Ro'xboroug'h,

z claims.` (ci. ca -1a) l f The present invention relates to a process for manufacturing a new kind of textiles and cerconsists preferably of natural fibers such as wool,

Ltain intermediates from which these textiles can be made.

One object of the invention is to produce a substantially fibrous fabric which can be die out to any desired size,'shape or configuration into mats or strips the edges of which are protected against unravelling without any further treatment.

Another object of the invention is to produce a textile fabric composed of substantially fibrous threads bonded firmly together at numerous contact points so as to form an extremely durable and wear resistingA material. y

Still another object of the invention is to produce threads of spinnable fibers combined with a strip material of natural or synthetic unvulcancotton Jute, or other soft or hard fibers but it may also contain an admixture or consist entirely of synthetic fibers such as staple rayon fibers. .A

lap sectionA 2te of suitable width, upon leaving the dofier. is guided into a conical cup at, causing a condensation of the material of the lap section. The condensed material passes between pressure rollers 2t which form it into a. sliver 26 and deposit ized rubber, partly vulcanized or which, after ini threads into a fabric, may be cured to diiuse the strip material partly through the adjacent fiber layers so as to bind the adjacent threads firmly and securely together.

A still further object oi the invention is to provide a fibrous thread material consisting of natural or synthetic spinnable fibers combined with one or more slightly tacky strips of an unvulcanized rubber composition, ing capable of being formed into various fabric articles and of being cured in the fabric to bond corporation of the,

- the individual threads of the fabric together.

These and other objects which will appear more clearly as the specication proceeds, are accomplished according to the invention by the process set forth in the following detailed description, defined in the appended claims and illustratively exemplified in the accompanying drawings in which: v

Fig. 1 is a diagram illustrating one method of manufacturing thread material according to the invention. Y

Fig. 2 is a cross-section, and

Fig. 3 is a side elevation,'partly broken away of a thread obtained by this method.

Fig. 4 is a diagrammatic enlarged plan view of a piece of fabric in which warp and weft consist of threads as shown in Figs. 2 and 3.

Fig. 5 is a cross-section ofthe fabric, taken line 5-5 of Fig. 4 before curing.

Fig. 6 is a similar cross-section of the same fabric after curing.

Referring now to the drawing, and first to Fig. i, il is the carding cylinder of an upstrikercard and e The fibrous lap 23 formed in the form of separate lap sections, onthe cardine cylinder and thrown4 onto the doffer. 22

g the usual manner.

said thread material bee the sliver in a conventional sliver can 2l. A strip t8 consisting of an unvulcanized natural crude rubber composition is jfed to the lap section 2te from a spool 2t shortly before the lap section 23a enters the cup t and at a speed substantially equal to the speed of the lap section 23a in such a manner that the rubber strip 281s placed in the center 'of the sliver formed by the condensation of the lap section 23a. The sliver 28 thus contains. extending along its longitudinal axis, a rubber strip 28. When the can 21 is filled, itis moved to a spinning machine and the sliver 25 is spun in e The resulting thread contains a central core of unvulcanized rubber Si as shown in Figs. 2 and 3.

The rubber strip 2B may be produced by cutting a film formed from a suitable rubber composition,

y the fabric is cured, for instance at a temperature of about 240 F. and a pressure between 2000 lbs. and 10,000 lbs. per square inch for 7 to l5 minutes. This vulcanization causes part of the rubber core in each of the threads to diffuse so that tentacle like formations project into adjacent threads where they become anchored in the rfibrous material of Athe latter and also join with similar did'used vtentacle formations of the rubber cores therein, as indicated in Fig. 6. A fabric of this type is highly resistant to wear and tear and lt can be cut, for instance by means of dies, to any desired size, shape or configuration without' danger of unravelling. y

We claim: v i l. A process of manufacturins a wearresisting fibrous fabric containing fibrous threads bondedA be used for the strip material.

rmly together, which process comprises the steps of combining with a lap section obtained by carding spinnable fibers, during condensation of the lap section into a sliver, a curable strip material selected from the group consisting ot the vul canizable natural and synthetic rubbers by feeding said strip material to the lap section parallel to the length of the latter while advancing the I lap section at substantially the same speed in 2. A process as claimed inv claim 1, in which the i'abric is cured by vulcanization at a pressure between 2000 and 10,000 lbs. per square inch.

ROY CLEELAND. LOUIS J. KELLEY. WALTER S. DAVIS.

REFERENCES CITED l0 The following references are of record in the file of this patent:

UNITED STATES PATENTS Number 15 590,842 1,564,238 1,772,109 2,217,049 2,313,058

Name Date Kennedy Sept. 28, 1897 Heany Dec. 8, 1925 Quaas Aug. 5, 1930 Greenleaf Oct. 8, 1940 Francis Mar. 9, 1943 Whitehead July 10, 1945 Truitt June 4, 1946 McMillin Nov. 19, 1946 

